CVE-2025-23396: Siemens Teamcenter Visualization RCE Flaw

CVE-2025-23396 Overview

CVE-2025-23396 is an out-of-bounds write vulnerability [CWE-787] affecting multiple Siemens Teamcenter Visualization and Tecnomatix Plant Simulation product lines. The flaw exists in the parsing logic for Virtual Reality Modeling Language (WRL) files. A specially crafted WRL file can trigger memory corruption, allowing an attacker to execute arbitrary code in the context of the current process. Exploitation requires user interaction, as the victim must open the malicious file using a vulnerable application. Siemens published advisory SSA-050438 to coordinate remediation across the affected product families.

Critical Impact
Successful exploitation enables arbitrary code execution within the user's process context, leading to confidentiality, integrity, and availability impact on engineering workstations.

Affected Products

Siemens Teamcenter Visualization V14.3 (all versions before V14.3.0.13), V2312 (before V2312.0009), V2406 (before V2406.0007), and V2412 (before V2412.0002)
Siemens Tecnomatix Plant Simulation V2302 (all versions before V2302.0021)
Siemens Tecnomatix Plant Simulation V2404 (all versions before V2404.0010)

Discovery Timeline

2025-03-11 - CVE-2025-23396 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2025-23396

Vulnerability Analysis

The affected Siemens applications import and render WRL scene files used in 3D visualization workflows. The parser writes data outside the bounds of an allocated buffer when processing attacker-controlled fields inside a crafted WRL file. This out-of-bounds write [CWE-787] corrupts adjacent memory structures and can be steered toward control-flow hijacking. Exploitation requires the user to open the malicious file inside a vulnerable Teamcenter Visualization or Tecnomatix Plant Simulation client. Because engineering and manufacturing workstations regularly exchange CAD and visualization assets, malicious WRL files are a realistic delivery vehicle in industrial environments.

Root Cause

The root cause is missing or insufficient bounds checking during deserialization of WRL node data. The parser trusts size or index values embedded in the file and writes attacker-supplied bytes past the allocated buffer. This pattern is consistent with other file-format parsing flaws Siemens has remediated across the Teamcenter and Tecnomatix product families.

Attack Vector

The attack vector is local and requires user interaction. An attacker delivers a crafted WRL file through email, shared engineering repositories, supplier file transfers, or removable media. When an engineer opens the file in a vulnerable application, the parser triggers the out-of-bounds write. The resulting code executes with the privileges of the logged-in user, which on engineering workstations frequently includes access to product lifecycle data and manufacturing systems. Refer to the Siemens Security Advisory SSA-050438 for parser-level details.

Detection Methods for CVE-2025-23396

Indicators of Compromise

Unexpected .wrl files arriving from external email, supplier portals, or untrusted shared drives prior to a crash of TcVis.exe or PlantSimulation.exe
Application crash dumps from Teamcenter Visualization or Tecnomatix Plant Simulation referencing access violations during WRL import
Child processes such as cmd.exe, powershell.exe, or rundll32.exe spawned by Teamcenter Visualization or Plant Simulation processes
Outbound network connections initiated by the visualization process shortly after a WRL file is opened

Detection Strategies

Hunt for process lineage where Siemens visualization or simulation binaries spawn shells, scripting hosts, or LOLBins
Alert on Windows Error Reporting (WER) events tied to the affected executables with faulting module addresses outside known DLLs
Monitor file-system telemetry for .wrl files written to user download or temp directories followed by application execution within a short window

Monitoring Recommendations

Inventory all hosts running affected Teamcenter Visualization and Tecnomatix Plant Simulation versions and tag them as high-value engineering assets
Forward EDR and Sysmon telemetry from those hosts to a central analytics platform for correlation with email and file-share gateways
Track version compliance against the fixed builds listed in SSA-050438 and re-validate after each maintenance window

How to Mitigate CVE-2025-23396

Immediate Actions Required

Upgrade Teamcenter Visualization and Tecnomatix Plant Simulation to the fixed builds listed in SSA-050438
Instruct engineering staff to avoid opening WRL files received from untrusted or unverified sources
Restrict execution of the affected applications to users with a business need and remove local administrator rights where possible

Patch Information

Siemens has released fixed versions for each affected branch. Upgrade Teamcenter Visualization to V14.3.0.13, V2312.0009, V2406.0007, or V2412.0002 or later. Upgrade Tecnomatix Plant Simulation to V2302.0021 or V2404.0010 or later. Full details are available in the Siemens Security Advisory SSA-050438.

Workarounds

Block inbound .wrl attachments at the email gateway and quarantine them pending analyst review
Use file-type allowlisting on engineering workstations so only signed and reviewed WRL files from trusted CAD pipelines can be opened
Apply least-privilege configurations and application allowlisting to limit the impact of code execution within the user's session

bash

# Configuration example: identify affected installs across Windows engineering workstations
Get-WmiObject -Class Win32_Product | \
  Where-Object { $_.Name -match 'Teamcenter Visualization|Plant Simulation' } | \
  Select-Object Name, Version, Vendor